I’ve already had a few GCs walk through the house and tell me they’re going to submit a bid. I found them either by asking architects I know, and by scouring the Building Permits Browser on Chicago Cityscape.
I filtered the permits, looking for “renovation/alteration”, set the estimated project cost from $100,000 to $400,000, and then skimmed the project descriptions for words like “two-flat” and “rehab”.
I made a list of those contractors and found their phone numbers and emails elsewhere (the city used to include their phone numbers in the building permits dataset, and took it out in 2019 or 2020).
The Illinois General Assembly and Governor Pritzker just gave community college districts in Illinois the authority to work with local housing authorities to develop affordable housing. The bill, HB0374, takes effect January 1, 2022. The text is very short (see the screenshot below or read the bill).
What does this mean for community college districts? It probably means that they can lease their land to the local housing authority for that local housing authority to develop affordable housing for the community college’s students and their families.
The land is essentially free, since it’s already owned by the community college districts and it’s not taxed. Plus, community college districts have their own taxing authority (subject to caps) that can be used to pay for bond-based debt.
Three opportunities in Chicago
I’m going to point out three community college locations in Chicago that could be great places for new and affordable student housing to be built.
Malcolm X College
Across from the New Malcolm X college was the original Malcolm X college, and now it’s a huge vacant lot. The Community Colleges of Chicago sold it in 2016 to the City of Chicago, which sold it in 2017 to Rush University Hospital System (which is across the Eisenhower Expressway to the south).
Welp, Rush also wants to build housing – for unhoused people who use emergency rooms as a way to live and be housed. (People’s health dramatically improves when they have permanent housing and hospitals spend less money on treating them in expensive-to-operate ERs.) Rush and the Chicago Housing Authority could develop housing for both populations – the chronically sick and students – using funds combined with the Chicago community college district.
Additionally, the Jackson bus takes people to and from downtown, and the Blue Line has a station at Illinois Medical District a block away.
The Humboldt Park Vocational Education Center, which is operated by the Wilbur Wright community college, is another prime location for student housing. The center has a huge parking lot and lies along the California Avenue and North Avenue bus routes.
Parking lots love to be turned into homes, especially in gentrifying areas. That’s free land in a high-demand area where rent is north of $1,200 for a 1-bedroom apartment (I’m using HUD’s Fair Market Rent for the 60647 ZIP code).
Dawson Technical Institute
Then there’s Dawson Technical Institute in Bronzeville, which is about 2 blocks from the Indiana Green Line station and several east-west and north-south bus routes.
Dawson teaches construction trades, which is perfect because the Green Line can take students to internships and jobs at all of the new construction in Fulton Market that’s ongoing and going to continue for the next three years (at a minimum).
What other good affordable student housing construction opportunities do community colleges in Illinois have?
Of the many things Metra does to discourage ridership, here’s a new one to me: You go up to the platform towards your destination and there’s a sign that says “your train might actually stop at the other platform, which is entered from the other side of the street”.
I was with two friends and we were planning to board a Metra UP-West train to Geneva, Illinois, to start a bike ride on the Fox River Trail.
What the sign actually says, as you can see in the photo, is “Notice! Some trains from Chicago board from opposite platform”, but I think my interpretation is accurate.
We brought our bikes up to the platform that was labeled “trains from Chicago”, which Metra has labeled “Platform 2”. Union Pacific, which runs their freight trains and operates Metra’s trains, is a left-running railroad in Chicago, meaning trains run on the left track in the direction of travel.
A minute after we settled in to wait 10 minutes for the train, we noticed the sign. A freight train started down this track, and we’re wondering, “is this freight train the clearest indication that we should head now to the other platform?”
We even tried to deduce which track the outbound train would run on by watching signals (one will eventually turn green).
When it looked like the freight train wasn’t gonna clear the track in time, we moved to the other platform. It’s good we did. About 1 or 2 minutes before the train arrived, an announcement confirmed our choice of platforms. Phew!
What made this maneuver of ours between platforms complicated was that we had bikes and it takes an extra moment to carry them down and back up stairs.
While the Metra approached and started slowing down, there was just the slightest fear it wasn’t actually going to stop. The train had more coaches than necessary for the demand and only the last car opened. So you watch like 7 coaches pass by.
This being the Kedzie station on UP-West, we were probably three of 10 riders here this whole week. In the current schedule, only 41 percent of the weekday trains stop here.
The announcement of the boarding platform was hard to hear over the freight train noise, the platform identification sign for “Platform 1” – the middle platform – took a moment to see and verify. But, and here’s the clincher to this part of the story, the announcement didn’t come with enough slack for us to have “run” over to the correct platform – with our bikes – and not feel stressed about what should be a seamless ride-up-to-the-platform-and-board start to the trip.
Photo from “Platform 1” (a center platform) with our arriving Metra train on the left and the freight train that ended up stopping in front of the original platform we ascended.
We took the last outbound train of the morning that stops at Kedzie to Geneva. Then we biked south on the beautiful Fox River Trail to Aurora. We missed the train and didn’t want to wait 2 hours (😬) for the next one so we biked northeast to Wheaton along the Illinois Prairie Path’s Aurora Branch and made it on that inbound train just in time to go home.
We saw a new piece of “regional” infrastructure on our trip, a new pedestrian and bike bridge over the Fox River in Aurora, Illinois. The verdict on their brand new pedestrian & bike bridge is…it’s very cool. I wish it had greenery, though.
The bridge is characterized by a large, central, vertical concrete beam that provides the structural spans. At the ends of the bridge, the beam separates the walking and biking paths, but at the center the decks rise up while the beam appears to drop down and there’s an open and combined deck at the center. The deck is also widened at the center so that there’s some gathering space outside of the paths of travel.
Visiting the Fox River Trolley Museum is a fun day trip for anyone who likes Chicago train history or trolleys and streetcars generally. The FRTM is free to browse, and rides cost $5 each or pay $8 for unlimited rides (adult prices).
The museum is not accessible to people with disabilities. It’s open Sundays from May to October and some holidays (check their calendar). The museum has two portable restrooms, but I recommend using the permanent and spacious ones in County Park.
Trip option 1, the short and direct option: Take Metra’s MD-West line to National Street and bike 15 minutes south along the Fox River Trail. The trail passes County Park, where there’s a playground, restrooms, and bike parking. Lock your bike here and walk on the gravel path from the park to the outdoor museum.
Trip option 2a, the really convenient option: Have a friend who loves planning multi-modal bike trips dig into the Metra schedules and send calendar invitations to everyone in the group so there’s great expectations as to when and where the trip starts and ends. Thank you, D.S.!
Trip option 2b, the longer one that incorporates more cycling: Take Metra’s BNSF line to Aurora Transportation Center (ATC). The BNSF line has Metra’s new bike cars on specific runs (check the schedules). This is important because it means you can bike with a larger group of people than before since your group’s size is less subject to capacity constraints for bikes on standard Metra trains – without bike cars – and unpredictable directions from Metra conductors. Additionally, on standard Metra trains, the posted bike capacity may be inaccurate if the conductors have not opened all of the coaches.
After disembarking at the ATC, ride to the north side of the center towards the river and use the signalized intersection to cross the high-speed road to the Fox River Trail. From here on out you’ll be following the FRT northward via its off-street and on-street sections. The trail is mostly off-street, so that’s fun, and it’s nice to have so much shade.
You can basically just bike north and follow the FRT signs but you may want to review a trail map ahead of time because it’s often possible to bike on either side of the Fox River and there are advantages to riding on one side over the other in some segments. For example, from downtown Batavia north to Fabyan Villa, I prefer the west side. At Fabyan Villa you’ll have to switch to the east side.
From Aurora, look for FRT direction signs that say “Batavia”, and then “Geneva”, and then “St. Charles”, and finally “South Elgin”. I believe the only option for cycling through downtown St. Charles is on-street, and there are some hills on its FRT street sections so be prepared or look for an alternative route.
This is as good a point as any to mention that you could shorten the bike trip by taking Metra’s UP-West line to Geneva, which is north of Aurora, and heading on downhill streets to the riverfront and crossing the pedestrian bridge underneath the Metra tracks to join the Fox River Trail on the east side to head north.
My two friends and I ate at Flagship on the Fox, an American restaurant and pub with seating indoors, on a covered patio, and outdoors. The Flagship Burger, with onion rings, avocado, bacon, and white cheddar cheese was delicious. Next door is Pollyanna Brewing Company, but which doesn’t sell food.
A lot of the FRT follows the old Aurora, Elgin and Fox River electric railway line! Can you believe that there used to be interurban trains running up and down the Fox River connecting the towns there (which I mentioned above)?
The Aurora, Elgin & Fox River Electric was an interurban offering both freight and passenger service between Yorkville and Carpenter, Illinois. Operations began as early as 1895 and closely followed the Fox River for its entire route. It underwent several mergers and names over its lifetime before eventually becoming 40 miles in length and operating two streetcar services in Aurora and Elgin.
As with most interurbans, the AE&FR was overtaken by buses and the automobile, and passenger service was discontinued in 1935. Freight service continued along portions of the route up until 1972.
The AE&FR ran on the Fox River’s west bank from Aurora to St. Charles, where it switched to the east bank. On approach to South Elgin, however, and due to a big bend in the Fox River, it kept going straight and found itself on the west bank again.
A minute or two after crossing the bend in the Fox River on the former interurban’s bridge, you’ll encounter the southern end of the Fox River Trolley Museum’s demonstration track. Less than 10 minutes later and you’ll be arriving at County Park where I recommend parking your bike.
What’s the timing on this? I don’t know. My friends and I took our time cycling and stopping for photos and eating. The relaxed riding nearly prevented us from being able to ride a trolley. The museum runs a trolley once an hour every hour, and we arrived a few minutes after the most recent trolley left the station. We needed to be in Elgin to ride Metra’s MD-West line back to Chicago at 15:55, and the next full ride would take so long that we would miss that train, and since it’s Sunday, it’s safe to assume that the next Metra train runs two hours later.
The volunteer staff at the museum were sympathetic to our case and created a special charter for just the three of us! The two operators and an apprentice took us on a shortened journey down the line, from Castlemuir (the home station) to a switching yard of sorts halfway down the line. The yard is where trains could be rerouted to a track that joined up with former Illinois Central tracks going east-west.
We rode the former North Shore Line car 715. This car used to run between Chicago and several cities along the North Shore, including Evanston and Willmette (where the Chicago Transit Authority’s Purple Line runs now), Skokie (where the CTA’s Yellow Line runs), and further north to Milwaukee. Check out the North Shore Line’s route map on the Northwestern University Transportation Library’s website.
You would have also seen car 715 running around the Chicago elevated loop, and making stops at the existing Belmont and Wilson elevated stations (although both of those have been replaced and tracks re-aligned for slightly faster service).
Once you’re done enjoying the historic trains at the FRTM, get back on the Metra and go home. Check out Elgin’s riverfront if you have to wait, and there are restaurants in downtown Elgin.
After the bill drama with Peoples Gas last year, in which I was billed a $50 “base” fee per unit per month for the privilege of having a gas line to my house, I decided to make the gut rehab of my two flat all electric. I think that making an all electric house is easy, but it takes a lot of research to know what that means and how to select materials and appliances.
I have several reasons for keeping natural gas out of my house:
Natural gas has point source emissions causing indoor air pollution that need to be vented and evacuated properly (gas stovetops emit methane into your kitchen, so turn on your hood that hopefully vents to the outside)
The price of natural gas is not falling as fast as electricity is falling
Electricity is more and more likely to come from renewable sources, especially in Illinois because of our state policies that require ComEd and Ameren to buy more and more power from renewable sources
A future photovoltaic solar panel array could be integrated and some of the electricity in the house would come from its own generator
Without gas pipes in the house, there is less infrastructure to build and maintain
There are still some downsides to having an all electric house, namely when the power goes out on the block then nothing in the house will turn on. There are solutions, for this, though, including integrating a battery pack or using a fossil fuel-powered generator with its own tank.
The Passivhaus-certified single-family house in Hyde Park that I toured in 2018 has a small natural gas-powered generator in the rear yard, fueled by a typical Peoples Gas supply line.
What does it mean to have an electric house?
I think there are three categories of choices that one makes, about visible appliances, invisible appliances, and heating and cooling.
A visible appliance is one you use directly and frequently, like an oven and a clothes dryer. These are essentially the only two appliances that have gas and electric versions and electric versions are just as commonly available as gas version.
An invisible appliance is one that’s in a closet or in the basement, like a water heater. Most people I know have a gas-powered water heater (usually a tank, not tankless), and there are two kinds of electric water heaters (which I detailed in Two-flat journal 3). Again, these are very common and electric water heaters (standard with resistance heating, tankless, and hybrid heat pump) can be picked up anywhere a gas-powered water heat can be purchased.
Heating and cooling is the complicated category of the three. A typical new construction house or condo has gas forced air for heating, a condenser for air conditioning, and the air is pushed through the house via ducts. In the electric universe, however, mini splits/air source heat pumps have been around for 40 years and are extremely efficient at both heating and cooling. In cold climate region 5, where Chicago is, air source heat pump manufacturers have additional products to deal with the extreme cold temperatures.
Going electric in the heating and cooling category is the only one that necessitates deeper research on windows, wall assembly, and insulation to go beyond the basic energy efficiency code (Illinois Energy Conservation Code 2018). While the air source heat pump is efficient (some have a coefficient of performance, COP, of 3-4, meaning it transfers three to four times as much heat energy to the house as the energy they consume) it will work very hard to keep a house warm during negative temperature days (F°) and thus it’s important to have a well-sealed house so the conditioned air you’re paying for doesn’t escape.
If you want your house to be all electric, a lot of these choices can be made over time. For example, you can stop the air pollution by buying a range with an induction cooktop, which is extremely efficient, safe for households with children, and very easy to clean. I like to cook soup in my Dutch oven (which is compatible with induction cooktop) and I would rather not have to have the burner on for an hour, accompanied by a noisy vent fan.
Financial benefits of an all electric house
In addition to certain federal tax credits for replacing certain appliances, which you can claim when you file your tax return, there are often local incentives. ComEd has a new Electric Homes program that offers $4,000 cash (to the builder or general contractor) for an electric house (new construction or renovation) that meets their requirements. (2021 is the second year in operation, and there’s no guarantee it will operate next year.)
From ComEd’s marketing:
Building your clients’ dream homes – why not make them energy efficient?
ComEd provides a $2,000 incentive per home for electric homes new construction! All-electric home construction can sound daunting at first, but with the knowledge and help of ComEd, you too can benefit from tight envelope, all-electric HVAC, heat pump water heating, lighting and appliances. Construction of single-family homes, duplexes, townhomes, and 2-4 flats are eligible.
Make the jump to high-quality, next-generation, electric homes. Reduce energy bills while providing superior comfort. Prepare for a clean, resilient energy future.
Learn about additional clean energy strategies like solar power, electric vehicle charging, smart homes and induction cooking.
I’ve done a lot of research on appliances in all three categories because my architect needs to know exactly which appliances I’m selecting so the kitchen, utility closet, basement, and other spaces can be designed to fit them. Thankfully, a lot of appliances have similar dimensions so it’s easy to match the available space with the catalog of laundry machines, refrigerators, etc.
There are two main attributes to watch for when selecting electric appliances: the yellow Energy Guide label that estimates the annual cost of operating the appliance, and whether it has Energy Star certification. One of the ComEd Electric Homes requirement is that every appliance that can be Energy Star certified is – I’ve found that there are no certified ranges.
Frigidaire FCRE3052AB ($629) – Not Energy Star certified, not induction
Frigidaire GCRI3058SS ($1,169) – Not Energy Star certified, yes induction
Water heater. Something to know about tankless is that it’s not necessary to have a single tankless source for the whole house, as it’s possible to have multiple tankless water heaters at each water source, sized to the need – the kitchen sink can have one, and the shower and the lavatory can share another. The hybrid heat pump water heater currently has a 10% federal tax credit, up to $300.
Rheem brand’s “Performance Platinum 40 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater” (Home Depot)
Each dwelling unit will have the same water heater but may not have the same kitchen and laundry appliances.
Clothes washer. Stacked, to save space, from (each is about $800):
Mini split systems have two parts: An outdoor condensing unit and one or more indoor fan units. They’re connected by a refrigerant line, an outgoing condensation line, and electricity from the outdoor unit to the indoor units that is routed through a small diameter (3″) hole in the exterior wall.
There are several options for indoor units: Wall-mounted, ceiling mounted cassette, ceiling mounted box, and ducted (the outdoor unit will provide the hot or cold refrigerant and the ducted unit will blow air through a duct network). My architect and I have selected two ceiling-mounted cassettes per dwelling unit; these fit within the 16″ between joists and avoids the protrusion of wall-mounted units.
Outdoor unit, Mitsubishi MXZ-3C30NAHZ2 (Ecomfort, $3,365 x2)
Ceiling cassette indoor unit, Mitsubishi MLZ-KP09NA (Ecomfort, $895 x4)
I will need a venting system to exchange fresh air into each dwelling unit, without relying on the typical situation where the leakiness of houses brings in fresh air. An energy efficient way to do this is to use an “energy recovery ventilator” (ERV) that transfers the heat or chill of outgoing conditioned air to incoming fresh air to reduce the amount of energy that the heat pump would expend to warm or chill the incoming air.
Oh, one more thing, the electrical panels in the basement will need to be replaced (which is part of the replacement of the entire electrical system), and ComEd will likely need to string higher-amperage lines from the alley overhead power lines to the house. This area requires more research and possible a conversation with an electrical contractor or ComEd. I’m currently assuming that I can specify that the electrical contractor will handle this with ComEd.
Updated May 3, 2021, to add more insight from Robinson Meyer (The Atlantic) as to why lumber prices are so high.
My architect and I are still working on plans, slowly but surely. Read my previous entry, Two-flat journal #4, to understand why that seems to be taking awhile.
There is something else on my mind as we work toward the goal of a gut-rehabbed two-flat: How much this whole project is going to cost.
I’ve talked to several contractors, engaged a structural engineer to specify and design the new steel beam in the basement, and obtained quotes for all new windows from four manufacturers.
One contractor happily gave me an estimate, based on incomplete plans, that was about $220,000. That price could go down with more specific plans and instructions, as the estimate had variability based on unknowns, and it doesn’t include the cost of purchasing the windows. More likely, I think the price will go up due to material costs.
How much windows might cost
All window quotes I’ve obtained include installation by the manufacturer’s selected installers, which has a benefit from some companies, mainly that the maker will guarantee the installation for a period of time.
I would share the quotes with you but I don’t think they would be very helpful at this point because I haven’t evaluated each of the quotes on the quality of the window. For example, one of the window quotes was three times higher than the next highest quote, but the maker guarantees installation for 10 years and is a higher-quality window. But what is the factor of difference in quality, is it three times? And how valuable is a 10-year installation warranty? It’s unlikely I would need to avail that benefit and the three times difference in price means I could replace all of the windows *again* two times for the same price! (Assuming prices didn’t increase between now and that future moment.)
The 15 new windows, according to the four quotes, will cost anywhere from $12,000 to $46,000. I should mention that the highest quote doesn’t include any discounts or special offers, as those will be offered once I re-engage the estimator and ask for one.
There are a couple of opportunities to reduce window costs. I could convert more of the casement windows to be double hung windows (which I don’t want to do as I prefer single hung windows), or I could change the window opening size. A couple of the window openings are taller than most of the window makers have in their standard window design, so an upper transom (fixed) window would be required. However, changing the window opening size may end up shifting costs to a different plan of adding bricks and adjusting walls.
Another way to reduce the window cost would be to use models that are less energy efficient, but I also don’t want to do that. I’ve insisted that every window be Energy Star certified – this is about the only certification standard that I understand, and it’s common across most window makers in the Chicago area. (There are also Passive House and Passivhaus certified windows, and companies that import higher-quality and more efficient windows from European manufacturers, but I haven’t bothered with any of those because I assume the prices will be even higher.)
Lumber and other construction materials
That lumber prices have more than doubled over prices a year ago is well known if you read real estate industry news media, or if you’ve shopped for wood at Menards to build a couple of benches for some nicer outdoor space or installed a new porch.
My gut rehab will require a lot of plywood (to replace the subfloor), “soft lumber” replacement studs, and some replacement joists.
The St. Louis Federal Reserve maintains “FRED”, an amazing website with interactive charts to explore economics statistics, including lumber. The pricing information comes from the Bureau of Labor Statistics and their Producer Price Indexes.
The chart for the plywood price index below shows very stable pricing in fall and winter 2019-2020, and then in May 2020 prices start climbing and the index increased by 100 points to March 2021.
BLS has monthly detailed reports so you can find data about more than the products FRED has charts for. Let’s dig in to the March 2021 report (indexes mean that the pricing represents percentage changes based on 100% being the price when the index was established):
“Softwood dressed 2-inch lumber, 2 inches in nominal thickness only, not edge worked” (a.k.a. 2×4 studs) (index established June 2012):
March 2020: 205.1
March 2021: 324.1 (this means that the price has increased by 119% year over year, a more than doubling of price)
“Softwood plywood products: rough, sanded, and specialties” (index established December 2011):
March 2020: 139.0
March 2021: 242.9 (again, this means that the price has increased by 103.9%, doubling the price)
In addition to general demand being much higher, there are other reasons why lumber costs so much more right now, according to Robinson Meyer writing in The Atlantic last week.
Since 2018, a one-two punch of environmental harms worsened by climate change has devastated the lumber industry in Canada, the largest lumber exporter to the United States. A catastrophic and multi-decade outbreak of bark-eating beetles, followed by a series of historic wildfire seasons, have led to lasting economic damage in British Columbia, a crucial lumber-providing province. Americans have, in effect, made a mad dash for lumber at the exact moment Canada is least able to supply it.
“There are people who say, ‘Climate change isn’t affecting me,’” Janice Cooke, a forest-industry veteran and biology professor at the University of Alberta, told me. “But they’re going to go to the hardware store and say, ‘Holy cow, the price of lumber has gone up.’”
It has lost 2.5 billion board feet of annual production capacity since 2019, enough to shift prices in a North American market of 70 billion annual board feet, Jalbert said.
Read Robinson’s full article to see how the bark-eating beetles overwhelmed the forests of British Columbia and the northern forest belt in Canada and why their rampage is fueled by climate change.
The same contractor, when they checked in with me recently, said that the prices of other construction materials had gone up, too.
In the same Producer Price Index report, it looks like wood doors and door frames went up 29.2% from March 2020 to March 2021; metal windows are up 7.1%, double hung wood windows are up 6.8% and wood casement windows are up 5.1%; wood moldings are up 16.9%.
I didn’t see any notable price increases in plumbing materials or kitchen cabinets – all were close to inflation. The PPI doesn’t have vinyl window products, or I don’t know under which category it falls.
I get this question several times a week, and I want to give everyone who asks a clear and accurate response without ignoring them (which I sometimes do). This blog post is how I can do that efficiently, and be more organized and mindful about the progress.
The renovation part of the renovation project hasn’t started.
The preparation part of the renovation project has been going on since August 2020.
I do not know when we’ll be done, or when we’ll have a permit, or when construction will start.
“Why is it taking so long?” is the question that people don’t ask aloud, but I guess that my friends are like me and curious.
It’s taking a long time because my architect and I don’t spend a whole lot of time working on the project. It’s all relative, of course. We spend about 10 hours a week on this (at most), and that includes a lot of learning and research.
We both have full-time jobs, have other things to work on, and our experience in this arena is limited. My architect, who prefers to stay out of the blogging spotlight, is extremely experienced in multi-family new construction residential architecture, though. We also rely heavily on the input of friends and neighbors who live in similar houses and have experience dealing with the construction idiosyncrasies of old buildings in Chicago. I also rely on the input of other architects who are experts in designing renovated and new construction one, two, and three-unit houses (thank you K.D. and P.M.).
This is a learning process for both of us. There are so many decisions to make, independently and together. We both want to be deeply involved in understanding what it takes to buy and gut rehab a house that I will live in. If we do it well this time, it would make it easier for either one of us to do it again for a different house.
What we’ve done in the past two weeks
I invited a fourth general contractor into the house to take a look. I am not getting estimates yet from these four GCs because the plans / permit drawings aren’t far enough along. Each GC, however, has reviewed the current plans prior to the visit so it’s easier to point and explain what’s going to change.
One of the big things that will change is replacing the wooden center beam in the basement to a steel I-beam, and changing out some of the joists. This will require temporarily shoring (supporting) the joists. Each GC has had a slightly different opinion on the procedure. But we get to hear each procedure and come up with the one we think is best.
I received and organized three quotes for all-new windows, as well as researched and modified the window schedule. “Organizing” the quotes means adding a new column to my window schedule spreadsheet with each manufacturer’s pricing so I can compare them. Part of window research is figuring out the type of window I want for each room and opening and assessing the quality of the manufacturer. For example:
I am learning that casement windows are more energy efficient because they create a better seal when closed and locked than hung windows.
I prefer single-hung windows to double-hung windows, but some manufacturers don’t make single-hung windows.
Every manufacturer has different maximum window heights. One of the openings is 80 inches tall and, for one manufacturer, the maximum height for a casement window is 72 inches and the maximum height for their hung windows is 75 inches. Thus, the estimator added transom windows to all openings that exceeded their maximums. That’s fine, but then it adds a new decision point: What proportion should be operable windows and what proportion should be transom windows?
My architect continued talking to the structural engineer I hired to make sure the engineer’s drawing has the right details and lists the specifications we asked him to write out on the drawing.
Settled on an HVAC system. For a couple months I’ve been researching mini-splits off and on. I got an estimate for equipment + installation from one company, which was much higher than I expected. I combined their projections for required heating capacity with projections from others, as well as CoolCalc.com, to settle on a lower capacity.
I started looking at more retailers who will sell mini-split systems directly to the consumer, or the GC, to get grounded in pricing and availability. Then, when I was done specifying the schedule, my architect took a look at the designs and the cut sheets, and figured out where the indoor units should go. He recommended choosing the cassette style that gets mounted within the ceiling between two joists. It costs more, but it looks a lot better since there’s not a big box hanging on the wall in the living room and kitchen.
Last Friday my architect and I visited a “near Passive House” standard three-flat being built in Pilsen. The developer, who will live in one of the units, also used mini-splits, from Mitsubishi. It was cool to see them installed (on the roof) and how they were connected to an air handler that serves as the blower to push the air through a traditional duct and out via an “energy recovery ventilator” (in the winter, the warmth of the outgoing air is transferred to the fresh incoming air so the machinery has to expend less energy warming up cold air).
While I was writing this, another of the four GCs that toured the house checked in. I told them that after this week we’ll have made significant progress since my architect has the week off of work.
What we’re working on next
Last week, my architect started drawing a window detail in the plans because there are good ways of installing windows and bad ways. I don’t fully understand them, so I’m not going to write about them here, but he did explain them to me and pointed out some good examples in his house and some bad examples in someone else’s house.
Finish the “panelboard schedule”. This diagram shows each circuit that will be in a breaker box, and labels them according to the circuits in the electrical drawings. Not every circuit breaker will be identical, as some circuits – like the ones for the water heater and mini-splits – need 30 or 40 amp breakers.
I am going to research the construction type’s fire protection requirements by reading the Chicago Building Code and noting the required fire ratings for the basement ceiling, the ceiling between floors, the interior front door’s rating, the roof rating, the rating for the light well wall, and the rating requirement for load bearing walls.
What I’m worried about
All of the decisions that have to be made. See the three points about windows above. I’ve got three quotes for the windows, all based on about the same schedule. But after I receive the fourth quote that I’m expecting this week, my desire for certain windows may change. I may want more casement windows, or different proportions of transom windows and casement-picture-casement window layouts.
The cost of everything. I have significant savings but I will still need to borrow some money. I need to start researching the universe of options and the availability of options. On top of this, lumber pricing has doubled since the start of the COVID-19 pandemic.
A common way to show the distribution of places (like grocery stores) is to use a heat map. The map will appear “hotter” where there are many grocery stores and “colder” where there are few grocery stores. This kind of map can be useful to show gaps in distribution or a neighborhood that has a lot of grocery stores.
One issue with that kind of heat map is that the coverage areas change their shape and color if you zoom in, since the algorithm that clusters or determines what’s “nearby” or dense has fewer locations to analyze.
I prefer to use grids in the shape of square tiles, since Chicago is grid-oriented city and the vast majority of our streets and our routes move along east-west and north-south lines. The map above shows the location of subjects and topics of news articles in the Chicago Cityscape database.
I use PostGIS to set up most of my spatial data before visualizing it in QGIS.
This tutorial shows the two steps to using PostGIS to (1) create a grid based on an existing area (polygon), (2) assigning each point location to a tile in that grid and counting the number of locations in that tile.
If you don’t have PostGIS installed, you should install it if you work with spatial data a lot. It is much, much faster at performing most of the tasks you use QGIS or ArcGIS to perform. Both QGIS and ArcGIS can read and edit data stored in PostGIS.
Additionally, there is a function within QGIS that can create grids, and another function that can do comparisons by location and count/summarize, so all of this can be done without PostGIS.
For this tutorial, you will need a single polygon with which to create the grid. I used the boundary of the City of Chicago limits.
-- Create required type
DROP TYPE IF EXISTS T_Grid CASCADE;
CREATE TYPE T_Grid AS (
-- Drop function is exists
DROP FUNCTION IF EXISTS ST_RegularGrid(geometry, NUMERIC, NUMERIC, BOOLEAN);
-- Now create the function
CREATE OR REPLACE FUNCTION ST_RegularGrid(p_geometry geometry,
p_point BOOLEAN DEFAULT TRUE)
RETURNS SETOF T_Grid AS
v_halfX NUMERIC := p_TileSizeX / 2.0;
v_halfY NUMERIC := p_TileSizeY / 2.0;
IF ( p_geometry IS NULL ) THEN
v_srid := ST_SRID(p_geometry);
v_mbr := ST_Envelope(p_geometry);
v_loCol := trunc((ST_XMIN(v_mbr) / p_TileSizeX)::NUMERIC );
v_hiCol := CEIL( (ST_XMAX(v_mbr) / p_TileSizeX)::NUMERIC ) - 1;
v_loRow := trunc((ST_YMIN(v_mbr) / p_TileSizeY)::NUMERIC );
v_hiRow := CEIL( (ST_YMAX(v_mbr) / p_TileSizeY)::NUMERIC ) - 1;
FOR v_col IN v_loCol..v_hiCol Loop
FOR v_row IN v_loRow..v_hiRow Loop
v_grid.gcol := v_col;
v_grid.grow := v_row;
IF ( p_point ) THEN
v_grid.geom := ST_SetSRID(
ST_MakePoint((v_col * p_TileSizeX) + v_halfX,
(v_row * p_TileSizeY) + V_HalfY),
v_grid.geom := ST_SetSRID(
ST_MakeEnvelope((v_col * p_TileSizeX),
(v_row * p_TileSizeY),
(v_col * p_TileSizeX) + p_TileSizeX,
(v_row * p_TileSizeY) + p_TileSizeY),
RETURN NEXT v_grid;
LANGUAGE plpgsql IMMUTABLE
The ST_RegularGrid function works in the same projection as your source data.
1.b. Create a layer that has all of the tiles for just the Chicago boundary
--This creates grids of 1,320 feet square (a 2x2 block size in Chicago)
SELECT gcol, grow, geom
FROM ST_RegularGrid((select geom from chicagoboundary where gid = 1), 1320, 1320,FALSE);
In that query, “1320” is a distance in feet for both the X and Y planes, as the “chicagoboundary” geometry is projected in Illinois StatePlane FIPS East (Feet) (EPSG/SRID 3435).
2. Assign each point location to a tile in that grid and count the number of locations in each tile
Now you’ll need a table that has POINT-type geometries in it. For the map in this tutorial, I used a layer of location-based news articles that are used in Chicago Cityscape to highlight local developments.
SELECT grid.id, count(*) as count, grid.geom
FROM news_articles, b_chicagoboundary_grid_1320squared AS grid
WHERE st_intersects(news_articles.geom, grid.geom)
GROUP by grid.id;
This query will result in a table with three columns:
I didn’t make any COVID maps earlier because I didn’t want to spend the time to ensure that I understood the right and wrong ways to map disease, because people make decisions based on maps and I don’t want my maps to end up harming anyone.
Aside from the state website’s usability issues, I’m very disappointed that there is zero data about COVID in the state’s #opendata portal.
These cities and counties have the most COVID vaccination sites, according to the IDPH’s dataset.
For the top 10 or so, it seems to correlate with population. Except Skokie has 7 sites, and Evanston has 4, despite Evanston having 10,000 more residents. Nearly 100% of Illinois is within 60 minutes driving of the current COVID vaccination sites. (More are coming, at least in Chicago.)
Nearly 100% of Illinois is within 60 minutes driving of the current COVID vaccination sites. (More are coming, at least in Chicago.)
And a lot of Illinois is still within 45 minutes driving of the current COVID vaccination sites. Really big gaps in geography appear at the 30 minutes driving threshold.
I’m working with some people to show access via transit. This is super important. I predict that upwards of 75 percent of Chicagoans will be able to access a vaccination site or two within 45 minutes and 100 percent within 60 minutes.
Here’s another shortcoming of the state’s map: Each site’s unique ID is not persistent, making it difficult to compare one day’s list to the following day’s list. I got around that by making a “hash” of each vaccination site and comparing between two versions.
The map has been updated once since I started. The “hash” creates a unique ID based on the attributes of each vaccination site (name, address, city, county, ZIP code). Any time one of those attributes changes, the hash will also change and thus I can more easily find new or modified vaccination sites.
This journal entry is all about the several hours of time I spent researching which water heaters to buy for my two-flat. While my architect works on drawing the plans, I am doing a lot of research to answer questions for him, so he knows what appliances are going to be hooked up to the house’s mechanical systems.
I started researching water heaters on a cold Saturday in January so I could fill out the “appliance schedule” for the project. My first journal entry was about my new distaste for Peoples Gas. Since then, my view has evolved and we (my architect and I) are designing an all-electric house.
SCROLL DOWN FOR THE RESEARCH – Read on while I discuss my thoughts about electricity and natural gas as a power source for homes.
Let me step back a moment. I also have a “distaste” (a weird word to use when talking about something that would literally kill you if you drank it) for fossil fuels, too. When I approached this research task I thought that an electric tankless water heater had some kind of inherent efficiency over an electric or natural gas-powered tank type.
But it doesn’t, and that’s partly dependent on how much water a household uses. Tankless water heaters are sometimes marketed as providing “unlimited” hot water, which scared me. Since I don’t go to an office anymore (because of COVID-19 and because I quit my office-attached job), I take a shower every other day. And they’re long. Just imagine that your shower never ran out of hot water. I might not get out. So that’s a personal critique of the type of water heater.
(Another con of tankless water heaters: When the electric is off, water cannot be heated; with a tank water heater, there is always residual hot water in the tank, which can still flow. Additionally, electric tankless water heaters have special electrical box requirements because they draw so much electricity.)
Let’s talk about the fuel. Natural gas is cheap right now – to purchase. But it has awful costs elsewhere, namely its contribution to pollution and carbon dioxide emissions when burnt. Burning it in the home also releases additional gases, which is why I think you should run your range hood vent/exhaust when you cook food on the stovetop.
Gas stoves emit a host of dangerous pollutants, including particulate matter, formaldehyde, carbon monoxide, and nitrogen dioxide.
Mother Jones, “How the Fossil Fuel Industry Convinced Americans to Love Gas Stoves”, by Rebecca Leber, FEBRUARY 11, 2021
Going electric in the kitchen is pretty easy, I think. I didn’t do much research and I picked out all Energy Star-certified appliances. For cooking I chose a range with an induction cooktop and an electric convection oven (which means there’s a fan inside to blow the heat around for even cooking). Induction cooktops, while being a really efficient user of energy, have cooking benefits: Water reaches a boil faster, the surface is easy to clean, and there are fewer burns because the surface doesn’t get hot.
Creating an all-electric house is pretty easy, actually, until you get to the heating and cooling part, and knowing how to heat a house with electricity in the very cold climate of northern Illinois requires even more research.
Water heaters are actually easy to figure out (after 5 hours of research) because, in the end, all you do is plug them in to a 240 volt receptacle and connect to the already-existing water pipes.
I am still in the middle of researching electric heating and cooling and I’ve opened a conversation with two HVAC contractors (one that sells Carrier and one that sells Mitsubishi).
I have researched five types of water heaters because I want to fully understand the purchase price and energy price of each.
Natural gas, tank
Natural gas, tankless
Electric, tank (hybrid w/heat pump)
Based on my research of manufacturers’ reported “Energy Guide” stickers (the yellow stickers required by federal law) for these five types, the Electric, tank (hybrid w/heat pump) (option 4) is far and away the most efficient water heater.
The Electric, tank (hybrid w/heat pump) has an annual operating cost of $104. What is this thing? It takes the standard tank, uses electric heating elements (think of the wires inside your bread toaster), and extracts heat from the air in your house with the heat pump. That’s pretty amazing: There is free heat to be extracted from the air.
The Electric, tank (hybrid w/heat pump) has less than half the operating cost of the next lowest type: Natural gas, tankless.
Note that the electrical prices in the yellow “Energy Guide” sticker is 12 cents per kWh, and ComEd just charged me ~7 cents per kWh, so the annual operating costs of electric are less than the stickers say.
Next, as part of the “total cost of ownership” (well, minus maintenance) I added in the purchase price. The Electric, tank (hybrid w/heat pump) costs $1,400. That’s 1.5-4x more expensive than the other types of water heaters!
However, I’ve since found that Rheem/Richmond makes a couple cheaper models that don’t have high-tech features, so the purchase price is anywhere from $1,000 (if you can find that model) to $1,175.
I calculated the “5 year cost of ownership” price for water heaters of each type because it makes sense to distribute the purchase price over a period of its lifetime. I could have easily made this a 10-year amortization since water heaters come with 6 to 12-year warranties. I interpret the length of the warranty as the manufacturer’s assessment as to how durable they’ve created the machine.
Electric tankless $1,479 (caveats in that annual energy cost was extrapolated because a direct Energy Guide sticker wasn’t found)
Electric, tank (hybrid w/heat pump) $1,695 (does not include federal tax credit)
Natural gas, tank $1,999
Remember, though, that the Energy Guide stickers for the electric water heaters use a 41.7 percent higher energy cost than ComEd currently charges, and ComEd offers hourly pricing so the price can be much, much lower per kWh and the prices for the electric water heaters are EVEN LOWER. (Thank you for pointing this out, Troy.)
Guess what…the price of the Electric, tank (hybrid w/heat pump) can come down even more because of (1) a ComEd rebate, and (2) federal tax credit worth 10 percent of the purchase price + installation, up to $300.
Bonus: By getting electric you are part of the carbon-free future.
Now that I’ve convinced you that an Electric, tank (hybrid w/heat pump) water heater is the cheapest option, here are a couple of other things that came up in the Twitter conversations.
Including utilities (i.e. electricity cost) in the rent for the rental apartment in my two-flat benefits both me and the tenant. The tenant has a fixed and predictable energy cost and fewer bills to pay, while I am able to charge a bit more than I predict the cost will be in order to pay back the higher upfront costs of the water heater and the Energy Star-certified appliances (as well as the heating and cooling system).
The calculations might be different if I looked into having individual tankless water heaters at the point of demand, or using them as “boosters”. Tankless water heaters come in a variety of capacities and energy outputs (measured by how much energy it takes to increase the temperature from how cold the water is when it enters the house or heater to the desired temperature). One could be added to the kitchen, the bathroom, and next to the laundry, and sized for the differing demands of each location.
A complex system could be built that is programmed to buy energy from ComEd when the hourly cost is the lowest and use the power from the battery when the hourly cost is highest.